Well, this is one for the ages.

There's so many high school kids lately who keep trying to a celeb to accept a prom offer and be the cool kid on the block. This guy may have a WAY better date than a celebrity -- his great-grandmother.

Austin Dennison made a special wish come true for this special family member. He took his 89-year-old Dolores Dennison to his senior prom because she never got to go to her prom because she didn't have enough money.

The video will show you:

1. Pre-Prom Serenade (Austin to Great Granny D.D.)
2. Promenade Announcement & Walk Together
3. Dance Together to Frank Sinatra song: "Kisses of Delores"